From Dr. Vincent Gray:
I have been an Expert Reviewer on every one of the Reports of the Intergovernmental Panel on Climate Change and I can tell you that there is not a scrap of evidence in any of them that human emissions of carbon dioxide have any harmful effect on the climate.
How have they got away with it?
Attempts to "simulate" their unreliable and manipulated past climate "data" have been failures, yet are claimed as successes, But even if the "data" were genuine and the simulation successful it does not prove anything. Correlation, however convincing is not evidence of causation. The only way you can demonstrate the success of any theory is successful prediction of future climate over the whole range it is intended to be used, to a satisfactory level of accuracy. This has already been done with Newton's Laws of motion and Darwin's theories of evolution. It has not been done with the "global warming" theory. There has been no successful attempt to predict any future climate event. They do not even pretend they can do it, as they only provide "projections" from their models, not "predictions": .
How have they persuaded us that they are able to predict future climate?
They operate a system called "attribution". This is a combination of "simulation" (correlation), and "assessment" by "experts". The "experts" are all paid to provide the models that they are assessing. These assessments are therefore an elaborate and comprehensive conflict of interest.
They apply a whole series of "likelihoods" to each "assessment" and apply a fake "statistical significance" which, unlike those normally applied to genuine science, have no background of actual experimental observations.
(H/T Counting Cats)
Dr. Gray's stinging criticism of the IPCC for their computer model antics goes hand in glove with similar criticism by IPCC Reviewer Alec Rawls and Dr. David Evans. AGW theory is on its last legs. With no global warming for the past 15 years, virtually the entire theory of AGW now rests on Kevin Trenberth's untested hypothisis - generated by a computer model of course - that all of the missing global surface warming has transferred to the ocean deeps. AGW cannot be allowed to die a quiet death. There needs to be an accounting when all is said and done.